SOLAR CONTROLLER GL-235
Swimming Pool Heater Accessories
GL-235 is America's best-selling solar control and is designed for easy and dependable operation. Its microprocessor-based technology ensures reliable and accurate performance. Advanced features include differential temperature control, selectable high limit, programmable recirculation freeze protection, nocturnal cooling, and optional booster pump control.

  • Automatically maximizes solar heat collection
  • Precise, easy-to-read, calibrated temperature setting
  • Electronics in UV-protected locking weatherproof enclosure
  • LED indicators show status of system operations
  • Automatic switching (selectable) from solar pool heating to nocturnal pool cooling
  • Single-setting adjustment for desired pool/spa temperature
  • Recirculation freeze protection
  • Installer-programmable for any-system adaptability
  • UL-approved
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